Agustinus Biotamalo Lumbantoruan

Web Developer

From: Jakarta, Indonesia

As a passionate full-stack developer specializing in financial technology, I transform complex financial processes into intuitive digital experiences across retail banking, commercial banking, and forex trading platforms. While my expertise spans the entire development stack, my focus over the past five years has centered on mastering modern JavaScript frameworks including React, Nest.Js, Astro.Js, Vue.js, and Next.js to create dynamic, responsive interfaces. I combine technical excellence with business acumen to deliver secure, high-performance solutions that satisfy both C-level stakeholders and end-users while maintaining strict regulatory compliance.

Open for work
Open for freelance
Working on side project

Skills

Skills I have acquired in the last 5 years

Each number indicates the technology's usage frequency across projects, ranging from less recent to more recent work. The list covers both personal study projects and commercial endeavors, focusing only on technologies engaged with in the past five years.








I speak

Indonesia - native
English - C1

Work experience

Srabutan.com (Remote, Indonesia) logo

System Design & Architect

Srabutan.com (Remote, Indonesia)

January 2026 - now

Designed and architected the full technical infrastructure for Srabutan.com, Indonesia's premier freelance marketplace connecting businesses with talented freelancers.

  • Architected an AI-powered matching system that intelligently pairs clients with professionals based on skills, experience, and project requirements
  • Designed a scalable microservices architecture supporting portfolio management, real-time collaboration, secure payment processing, and project tracking
  • Implemented robust security measures and optimized performance for high-traffic scenarios
  • Led full-stack development, infrastructure scaling, and CI/CD pipelines using GitHub Actions, Docker, and DigitalOcean
  • Collaborated with the business team to align product development with market needs and drive strategic technical decisions
CITT Services (Remote, Dallas, USA) logo

Senior Web Developer

CITT Services (Remote, Dallas, USA)

January 2014 - December 2025

Delivered comprehensive technology consulting services for financial sector clients including Pepperstone, TitanFX, BaxiaMarkets, Funded Prop BX, Traderscolo, and Liquidity Connect.

  • Developed responsive, user-friendly web applications using React, Vue, WordPress, Laravel, and HubSpot CMS
  • Implemented SEO strategies that significantly improved online visibility and organic traffic for client platforms
  • Architected robust backend systems and automated data synchronization workflows using n8n, Python, and Flask
  • Built and maintained Docker-based deployment pipelines on DigitalOcean and Google Cloud infrastructure
  • Collaborated closely with stakeholders to deliver scalable solutions modernizing digital infrastructure while meeting security and performance standards
Wirecard (Jakarta, Indonesia) logo

Host Integrator

Wirecard (Jakarta, Indonesia)

August 2011 - December 2013

Engineered payment gateway integrations at PT. Aprisma Indonesia (a Wirecard A.G. subsidiary), connecting Prisma Gateway technology with clients' banking systems serving 14,000+ corporate clients across 69 countries.

  • Developed custom API connections and secure transaction protocols for end-to-end payment flows across multiple channels
  • Wrote integration code and troubleshot complex payment scenarios to optimize transaction processing efficiency
  • Ensured PCI-DSS compliance across all payment processing implementations
  • Designed automated testing frameworks to validate payment workflows
  • Created technical documentation for system administrators covering web services, encryption, and financial transaction protocols

Projects

TOKO VAVELLE — Vietnam Coffee E-Commerce

March 2025 - now

Team size: 1 person
My role: Founder, Front-end Developer
Company: TOKO VAVELLE
Category: E-commerce

Founded Indonesia's premier destination for authentic Vietnam coffee, partnering directly with Trung Nguyen to bring Vietnamese coffee culture to Indonesian consumers.

  • Architected and developed a comprehensive e-commerce ecosystem spanning the flagship website and multiple marketplace platforms (Tokopedia, Shopee, Lazada)
  • Built the AstroJS-powered platform with advanced SEO strategies, secure payment integrations, and inventory management systems
  • Crafted brand identity, established quality control protocols, and built strategic partnerships for authentic product delivery
  • Implemented data-driven marketing and customer experience optimization using Google Analytics

Vavelle Crispy Pork Belly

February 2018 - now

Team size: 1 person
My role: Co-Founder, Front-end Developer
Company: Vavelle & Co
Category: E-commerce

Co-founded and developed a dynamic e-commerce platform showcasing premium crispy pork belly offerings across the JABODETABEKA region.

  • Designed and built a responsive, SEO-optimized website using AstroJS with Instagram-inspired gallery layout
  • Integrated WhatsApp ordering system that eliminated complex payment gateways while maintaining personal customer interactions
  • Optimized site performance, integrated analytics for data-driven insights, and maintained scalable infrastructure

Travel to Bali Paradise

June 2025 - now

Team size: 1 person
My role: Co-Founder, Front-end Developer
Company: Travel to Bali Paradise
Category: Travel & Booking

Co-founded and built a travel platform empowering users to explore Bali's hidden gems through curated tours and vehicle rentals.

  • Architected a responsive, SEO-optimized travel platform using AstroJS with cross-device compatibility for global travelers
  • Integrated booking and payment systems with real-time availability for tours and vehicle rentals
  • Collaborated with local partners to feature authentic Balinese experiences and interactive destination guides
  • Implemented analytics for user behavior tracking and optimized site speed for seamless user experience

Vavelle AI Chat Interface

April 2025 - April 2025

Team size: 1 person
My role: Front-end Developer
Company: Personal Project
Category: AI Web app

A modern real-time chat application powered by GroqCloud's large language models with a responsive dark-mode UI.

  • Built with React and Tailwind CSS featuring syntax highlighting for code blocks and markdown-style formatting
  • Implemented efficient state management using React hooks with optimized API token usage for cost efficiency
  • Architected a backend proxy server to protect API credentials, eliminating client-side key exposure
  • Included error handling, loading states, auto-scrolling, and message timestamps for polished UX
  • Documented deployment for Vercel, Netlify, and Docker platforms

Next & FastAPI Sales Dashboard with Gemini AI Sales Chatbot

April 2025 - April 2025

Team size: 1 person
My role: Front-end Developer
Company: Personal Project
Category: AI Web app

A full-stack sales dashboard with a FastAPI backend and Next.js frontend, integrating Google's Gemini AI for intelligent sales insights.

  • Built Python/FastAPI backend serving sales data with endpoints for retrieval, AI-powered insights, and analytics calculations
  • Developed Next.js/React frontend with Tailwind CSS featuring filterable sales rep cards by region
  • Integrated Gemini AI chat section for natural language queries about sales data with markdown rendering
  • Organized architecture with separate components for layout, sales representation, and AI chat functionality
  • Implemented custom React hooks for data fetching and chat state management

Vavelle Crispy Pork Belly

January 2025 - now

Team size: 1 person
My role: Front-end Developer
Company: Self
Category: Web app, AI

A streamlined web application showcasing Vavelle & Co's signature Crispy Pork Belly product with an Instagram-inspired gallery and seamless ordering.

  • Created an intuitive interface highlighting product quality with visually engaging grid layout inspired by Instagram's design
  • Integrated WhatsApp ordering system eliminating complex payment gateways while maintaining personal customer interactions
  • Built responsive design ensuring accessibility across all devices for expanded market reach

Vavelle Car Rental

January 2025 - now

Team size: 1 person
My role: Front-end Developer
Company: Vavelle & Co
Category: Web app

A comprehensive car rental web application for Vavelle & Co with a cohesive six-page design streamlining the vehicle booking process.

  • Created a cohesive six-page website with intuitive navigation, responsive design, and consistent brand identity
  • Built an elegant gallery page with detailed car specifications allowing customers to compare rental options
  • Implemented a step-by-step booking system with clear date selection and vehicle availability indicators
  • Designed an FAQ page with expandable sections for improved readability and information access

Damai Kasih Channel

January 2023 - now

Team size: 3+ person
My role: Front-end Developer
Company: Damaikasihchannel.com
Category: Web app

A comprehensive religious digital platform serving as a spiritual resource hub for the Indonesian Christian community.

  • Built a sophisticated Bible application featuring multiple translations (Terjemahan Baru, Terjemahan Baru 2, Vulgata, Greek Interlinear) with Bible Dictionary, Catholic Catechism, and Canonical Law texts
  • Implemented text-to-speech functionality across blog, Bible applications, and web resources for accessibility to visually impaired and auditory learners
  • Created a cohesive JavaScript-based ecosystem maintaining consistency across multiple web applications with performance optimization
  • Continuously refined UI and added features based on community feedback since January 2023

Gatsby Garage

October 2024 - November 2024

Team size: 1 person
My role: Front-end Developer, Back-end Developer
Company: Personal
Category: Web app

A headless CMS solution leveraging WordPress for content management with GatsbyJS generating a lightning-fast static site.

  • Built a decoupled architecture combining WordPress content editing with GatsbyJS static site generation
  • Implemented GraphQL data querying for efficient content extraction and transformation
  • Gained hands-on experience with JAMstack principles including dramatic page load time improvements
  • Learned decoupled architecture patterns maintaining full content management flexibility

Nextjs Property

October 2024 - November 2024

Team size: 1 person
My role: Front-end Developer, Back-end Developer
Company: Personal
Category: Web app

A property listing application built with NextJS, exploring hybrid rendering strategies for real estate information display.

  • Created a complete property listing application with rich detail and intuitive navigation using NextJS
  • Implemented hybrid rendering: static generation for content-heavy pages, server-side rendering for dynamic search
  • Combined performance benefits of static sites with flexibility needed for interactive features
  • Strengthened full-stack capabilities by comparing NextJS and GatsbyJS framework approaches

CrosSyncOrder

July 2024 - October 2024

Team size: 1 person
My role: Front-end Developer, Back-end Developer
Company: Personal
Category: Web app

A SaaS solution for cross-platform trade synchronization in the Forex market, copying trades across MetaTrader 4, MetaTrader 5, and cTrader.

  • Designed a system copying trades from a single source account to multiple destinations across different trading platforms
  • Created uniform interfaces for disparate trading platforms with secure authentication protocols
  • Built a user-friendly dashboard with trade copying status monitoring, performance metrics, and comprehensive logging
  • Implemented real-time synchronization system with minimal latency using WebSocket and ZeroMQ
  • Containerized with Docker and Kubernetes for reliable deployment on Railway

Funded Prop Bx

January 2022 - October 2024

Team size: 3+ person
My role: Front-end Developer, Back-end Developer
Company: Funded Prop Bx
Category: Web app

A web application for proprietary trading funds management, streamlining evaluation and management of funded traders.

  • Designed an intuitive front-end interface with responsive HTML5/CSS3 layouts adapting seamlessly across devices
  • Built back-end architecture using WordPress and PHP with custom MySQL database solutions for trader performance metrics
  • Implemented robust infrastructure for trader evaluation, account management, and performance tracking
  • Maintained version control through GitHub with Docker-based deployment on DigitalOcean and Ubuntu

BaxiaMarkets

January 2019 - October 2024

Team size: 3+ person
My role: Front-end Developer, Back-end developer
Company: Baxia Markets
Category: Web app

A sophisticated financial services platform with separated public-facing content and secure client operations, built over a five-year period.

  • Built public website using WordPress for content management and marketing-focused company brochure
  • Developed secure client area with Laravel for account management and deposit functionality
  • Architected microservices infrastructure integrating multiple payment service providers with seamless transaction processing
  • Implemented SumSub KYC technology for regulatory compliance with frictionless identity verification
  • Delivered responsive front-end interfaces using React and Vue.js with scalable MySQL database architecture

News BaxiaMarkets

January 2020 - October 2024

Team size: 3+ person
My role: Front-end Developer
Company: BaxiaMarkets
Category: Web app

A specialized financial news platform integrated within the BaxiaMarkets ecosystem using HubSpot CMS.

  • Built with HubSpot CMS creating dynamic content templates for market updates, economic calendars, and analyst insights
  • Designed intuitive navigation and content filtering by asset classes, regions, or impact levels
  • Continuously refined UX based on engagement metrics and feedback over a five-year development cycle
  • Implemented responsive designs maintaining consistency across devices as a content marketing engine

Traderscolo Front-end and Back-end Development

January 2014 - January 2020

Team size: 11 people
My role: Front-end Developer
Company: Traderscolo
Category: Mobile app

A dedicated VPS rental platform for traders within an 11-person team, streamlining virtual server selection, configuration, and management.

  • Built customer-facing website and product information using WordPress with WHMCS for client management, billing, and provisioning
  • Created custom PHP solutions enhancing WordPress-WHMCS integration with specialized VPS configuration interfaces
  • Developed intuitive dashboards for server management, usage monitoring, and service upgrades accessible to non-technical traders
  • Leveraged VMware virtualization infrastructure on DigitalOcean and Google Cloud for reliable VPS hosting

Certifications

Udemy logo

Master OpenClaw (ClawdBot) with Kimi K2.5: A Hands-On Guide

Udemy

April 2026 - now

This hands-on course is your practical, step-by-step guide to OpenClaw (ClawdBot) powered by Kimi K2.5. You'll go from zero to confidently running and deploying OpenClaw on AWS EC2, while understanding how it works behind the scenes and how to apply it to real-world scenarios.

Udemy logo

Master Functional Programming techniques with Elixir and Phoenix while learning to build compelling web applications!

Udemy

April 2025 - now

This course teaches Elixir and Phoenix, covering functional programming fundamentals, building fast web applications, and integrating Postgres and OAuth. You'll learn to think with a functional programming mindset, master Elixir syntax, and build compelling web apps with Phoenix.

Udemy logo

Next JS & WordPress: Build Rapid NextJS Sites

Udemy

December 2024 - now

Advanced course on building high-performance websites using Next.js and WordPress as a headless CMS.

Udemy logo

Gatsby JS v5 & Headless WordPress

Udemy

November 2024 - now

Comprehensive course on building modern web applications using Gatsby JS and WordPress as a headless CMS.

Udemy logo

React, NodeJS, Express & MongoDB - MERN Fullstack Guide

Udemy

November 2024 - now

Comprehensive full-stack web development course covering React, Node.js, Express, and MongoDB ecosystem.

Udemy logo

The DevOps Essentials - The Handbook

Udemy

November 2024 - now

Comprehensive guide to DevOps principles, practices, and essential tools.

Udemy logo

Docker & Kubernetes: The Practical Guide

Udemy

August 2024 - now

In-depth practical course on containerization and orchestration using Docker and Kubernetes.

Udemy logo

Dive Into Kubernetes - Containers, Docker and Kubernetes

Udemy

June 2024 - now

Detailed exploration of Kubernetes, containerization, and Docker technologies.

Great Learning Support logo

AWS for Beginners

Great Learning Support

October 2024 - now

Introductory course covering fundamental Amazon Web Services cloud computing concepts.

Great Learning Support logo

Cloud Computing Architecture

Great Learning Support

October 2024 - now

Comprehensive overview of cloud computing architectural principles and design.

Great Learning Support logo

Introduction to DevOps

Great Learning Support

October 2024 - now

Foundational course introducing DevOps principles, practices, and tools.

HubSpot Academy logo

SEO II

HubSpot Academy

November 2024 - now

Advanced Search Engine Optimization strategies and techniques.

Udemy logo

Beginners Guide to Google Tag Manager

Udemy

December 2022 - now

Introductory course on using Google Tag Manager for web analytics and tracking.

Udemy logo

Flutter iOS and Android Development

Udemy

November 2020 - now

Comprehensive mobile app development course using Flutter for iOS and Android platforms.

Udemy logo

Machine Learning A-Z

Udemy

September 2020 - now

Comprehensive course on Machine Learning using Python and R in Data Science.

Udemy logo

Project Management Practical Guide

Udemy

September 2020 - now

Practical project management course applicable across various industries.

Udemy logo

Complete Machine Learning Course

Udemy

August 2020 - now

Extensive machine learning course covering advanced data science techniques.

Education

Swiss German University logo

Information System

Swiss German University

October 2007 - July 2011

Bachelor degree. Specialization in software development. GPA 3.34

Testimonials

Nash Wadud

Nash Wadud

CEO at CITT Services

Bio consistently delivers exceptional technical solutions that drive our company's digital transformation. His innovative approach and strategic thinking have been crucial in solving complex technological challenges, demonstrating a remarkable blend of technical expertise and business insight.

Hannah Rivera

Hannah Rivera

COO at CITT Services

I've worked closely with Bio and have been consistently impressed by his ability to tackle intricate technical problems with precision and creativity. His problem-solving skills and deep understanding of emerging technologies have significantly enhanced our operational efficiency and strategic capabilities.

Nadiya Alistika

Nadiya Alistika

Colleague at CITT Services

Working alongside Bio has been an incredible professional experience. His technical proficiency is exceptional, and he has a unique talent for breaking down complex technical concepts and collaborating effectively across different teams. He consistently brings innovative solutions to our most challenging projects.

Dhruv Sangvikar

Dhruv Sangvikar

Colleague at CITT Services

Bio's commitment to technological excellence and continuous learning is truly outstanding. He constantly pushes the boundaries of innovation, bringing cutting-edge solutions and a forward-thinking approach to our team. His contributions have been instrumental in advancing our technological capabilities.

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